Weekly Theme Wrap (Oct 19 – Oct 23)
5 trading days · top 10 themes — most persistent is Defense & War at 3 days (weekly avg. +7.7%). Best single day this week: Oct 19, +18.4%.
Average change over the period
Haein was the week’s common thread, leading four themes from Defense & War to Solar and Construction Equipment. Defense & War was strong on 3 days.
The biggest single-day moves came on Oct 19, led by Battery at 18.4% via SM Bexel and EV at 17.52% via Nuin Tek. Political Ties (Oh Se-hoon) hit 16.87% on Oct 23.
Space & Aerospace (Nuri Rocket, Satellites) averaged 8.52% across 2 strong days, with LK Samyang and Contec leading. Solar posted the highest multi-day average at 9.73%.
This Week’s Theme Ranking
| Theme | Days strong | Weekly avg. | Best day | Last status | Leader |
|---|---|---|---|---|---|
| Defense & War | 3d | +7.7% | 2026-10-21 (+8.5%) | running | Victek, Speco, Haein |
| Solar | 2d | +9.7% | 2026-10-19 (+10.5%) | recurred | Nuin Tek, Haein |
| Space & Aerospace (Nuri Rocket, Satellites) | 2d | +8.5% | 2026-10-23 (+9.6%) | recurred | LK Samyang, Contec |
| Post-War Reconstruction (Ukraine, Middle East) | 2d | +7.8% | 2026-10-21 (+8.0%) | running | Polaris AI, Haein |
| Construction Equipment | 2d | +4.2% | 2026-10-21 (+5.8%) | running | DAEMO Engineering, Haein |
| Cybersecurity | 2d | +2.0% | 2026-10-23 (+2.6%) | running | Monitorapp |
| Battery | 1d | +18.4% | 2026-10-19 (+18.4%) | recurred | SM Bexel |
| EV | 1d | +17.5% | 2026-10-19 (+17.5%) | recurred | Nuin Tek |
| Political Ties (Oh Se-hoon) | 1d | +16.9% | 2026-10-23 (+16.9%) | recurred | Chinyang Poly Urethane |
| Battery (Materials & Parts) | 1d | +16.6% | 2026-10-19 (+16.6%) | recurred | Samkee Energy Solutions |
Related News by Theme
- Defense & War (2026-10-21) [특징주] 혜인, 464억원 AI데이터센터 공사 수주…장 후반 ‘上’ 기록 — 아주경제 (Korean)
- Post-War Reconstruction (Ukraine, Middle East) (2026-10-21) [특징주]삼성E&A, 전후 재건 기대감과 기관 매수세 유입에 9.40% 상승 — 남도일보 (Korean)
- Construction Equipment (2026-10-21) [특징주] 혜인, 464억원 AI데이터센터 공사 수주…장 후반 ‘上’ 기록 — 아주경제 (Korean)
What to Watch Next Week
Four themes carried a running (consecutive) flag into the week’s end, including Defense & War and Cybersecurity. Whether those runs extend is the next data point to check.
Battery, EV and Political Ties (Oh Se-hoon) each showed 1 strong day as a recurred (recurrence). Whether they reappear will show if the moves had follow-through.
Theme heatmap
| 10-19 | 10-20 | 10-21 | 10-22 | 10-23 | |
|---|---|---|---|---|---|
| Defense & War | +8.5 | +7.3 | +7.2 | ||
| Solar | +10.5 | +9.0 | |||
| Space & Aerospace (Nuri Rocket, Satellites) | +7.5 | +9.6 | |||
| Post-War Reconstruction (Ukraine, Middle East) | +8.0 | +7.5 | |||
| Construction Equipment | +5.8 | +2.7 | |||
| Cybersecurity | +1.3 | +2.6 | |||
| Battery | +18.4 | ||||
| EV | +17.5 | ||||
| Political Ties (Oh Se-hoon) | +16.9 | ||||
| Battery (Materials & Parts) | +16.6 |